ST. LOUIS, MO - NOVEMBER 6: U.S. Sen. Claire McCaskill (D-MO) greets supporters with her husband, Joseph Shepard (R) and other family members during an election night party November 6, 2012 in St. Louis, Missouri. McCaskill won in her re-election bid against U.S. Rep. Todd Akin (R-MO) for the Missouri U.S. senate seat. (Photo by Whitney Curtis/Getty Images)

RICHMOND, VA - NOVEMBER 06: U.S. Senator-elect Tim Kaine speaks to his supporters at the Downtown Richmond Marriot after winning the Virginia U.S. Senate seat on November 6, 2012 in Richmond, Virginia. Kaine defeated former U.S. Sen. George Allen in a tight race. (Photo by Patrick McDermott/Getty Images)

With his wife Ilana at his side, U.S. Senate candidate Josh Mandel gives his concession speech on election night in Columbus, Ohio. November 6, 2012. He was defeated by Democratic Sen. Sherrod Brown. (AP Photo/Mike Munden)

Photo: Mike Munden, Associated Press

With his wife Ilana at his side, U.S. Senate candidate Josh Mandel...

With his wife Ilana at his side, U.S. Senate candidate Josh Mandel... Photo-3706369.52081 - SFGate

George Allen, joined by his family, gives his concession speech Tuesday night, Nov. 6, 2012, in Richmond, Va. Allen, a Republican, lost the race for the U.S. Senate seat to Democrat Tim Kaine. (AP Photo/Richmond Times-Dispatch, Dean Hoffmeyer)

Photo: Dean Hoffmeyer, Associated Press

George Allen, joined by his family, gives his concession speech...

George Allen, joined by his family, gives his concession speech... Photo-3706377.52081 - SFGate

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U.S. House of Representatives District 33 candidate, Marc Veasey, applauds his supporters during an election day celebration at Smokeys BBQ on Lancaster Avenue in East Fort Worth Tuesday, May 29, 2012 evening. Robert W. Hart/Special Contributor

Photo: ROBERT W. HART, Robert W. Hart/Photographer

U.S. House of Representatives District 33 candidate, Marc Veasey,...

U.S. House of Representatives District 33 candidate, Marc Veasey,... Photo-3706378.52081 - SFGate

Rep Eric Cantor, R-Va., speaks to the crowd at the Republican Party of Virginia post election event at the Omni Hotel in Richmond, Va., on Tuesday Nov. 6, 2012. Cantor was reelected to his seventh term in the United States House of Representatives.(AP Photo/Clement Britt)

Photo: Clement Britt, Associated Press

Rep Eric Cantor, R-Va., speaks to the crowd at the Republican Party...

Suzan DelBene rushes through a room of supporters on her way to her room upstairs at a party at the Woodmark Hotel in Kirkland. DelBene, a Democrat, is running for the U. S. House - District 1. To DelBene's right is U.S. Rep. Rick Larsen. (AP Photo/The Seattle Times, Ellen M. Banner)

Photo: Ellen Banner, Associated Press

Suzan DelBene rushes through a room of supporters on her way to her...

Suzan DelBene rushes through a room of supporters on her way to her... Photo-3706385.52081 - SFGate

Kathy Hochul speaks at her headquarters, addressing supporters on Wednesday, Nov. 7, 2012 in Hamburg, N.Y., as her race in the 27th congressional district against Chris Collins is too close to call. (AP Photo/The Buffalo News, Harry Scull Jr.)

FILE - In this July 30, 2011, file photo, Rep. Allen West, R-Fla. speaks on Capitol Hill in Washington. West and two other high-profile House conservatives are facing opponents who insist that their views are too extreme, have trickier paths to re-election next month. GOP House candidate, West of Florida, Steve King of Iowa and Joe Walsh of Illinois are all embroiled in tough and expensive races that are drawing plenty of spending by friends and foes from around the country. West lost to Walsh during the Nov. 6, 2012 election. (AP Photo/J. Scott Applewhite, File)